A valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.
NSN 6150-00-577-8612
NSN 5910-00-811-1092
NSN 6610-01-483-1317
NSN 5945-01-403-2800
NSN 5975-00-035-6524
NSN 6110-00-780-7152
NSN 4140-00-504-1829
NSN 6645-00-392-8728
NSN 5915-00-462-3748
NSN 5910-01-107-0835
NSN 5950-01-176-0481
NSN 5835-00-034-4976